Sash holder and lock



March 2, 1943.

2 Sheets-Sheet 1 March 2, 19,43f H, E, PETERSEN l 2,312,475

sAsI-I HoLDER AND LOCK l I Filed NOV. 27, 1939 2 Sheets-Sheet 2 PatentedMar. 2, 1943 UNITED ST'i'E .retos SASH HOLDER AND LUCK Hans E. Petersen,Minneapolis, Minn., assigner,

by mesne assignments, to Carl Olson, Minneapclis, Minn.

Z Claims.

This invention relates to holders or fasteners for a swinging sashassociated with conventional types of window frames.

It is an object to provide an improved, relatively inexpensive buthighly efficient sash holder for frictionally and positively retainingthe sash in any adjusted open position, and for preventing the sash fromrattling in all such positions.

It is a further object to provide a sash holder of the class described,adapted to lock the swinging sash to the window frame in closed positionwhen the holder is bodily swung from its normal closed position to anopposite position.

Another object is the provision of a sash holder of the toggle typehaving quickly detachable connection means of improved construction forconnecting one of the toggle arms with' its associated bracket on theswinging sash or window frame, as the case may be.

It is still another object to provide a simple, but rugged sash holderemploying a pair of pivoted arms interposed between the swinging sashand sash frame, and having an efficient and improved friction mechanisminterposed between the joined ends of the arms and readily adjustable tovary the degree of friction as desired.

These and other objects and advantages of the invention will more fullyappear from the following description made in connection with theaccompanying drawings, wherein like reference characters refer to thesame parts throughout the various views, and in which:

Fig. 1 is a fragmentary vertical section, showing an embodiment of myinvention applied to a conventional swinging sash, with the sashdisposed in partially open position, the released position of theattachment locking dog for disconnection of the holder from the sashbeing shown in dotted lines.

Fig. 2 is a fragmentary elevation showing the connection of the outerarm of my holder with the attachment bracket on the swinging sash;

Fig. 3 is a detail cross section taken on the line 3-3 of Fig. 1,showing the attachment of the inner arm to the sash frame;

Fig. 4 is a detail view showing the pivot stud for connection of theouter arm with the sash attachment bracket;

Fig. 5 is a detail section taken on the line 5 5 of Fig. 1, showing theconnection of the pressure plate with the inner holder arm;

Fig. 5A is a detail end elevation looking toward the end of the jointbetween said pressure plate and extension Illa of the holder arm;

Fig. 6 is a view taken in vertical section through a portion of a windowframe and swinging sash, with the sash in closed position and showing myimproved holder in full lines swung through degrees from its normalclosed position to a position in which it locks the sash againstopening, the normal closed position of the holder being indicated indotted lines;

Fig. 7 is a detail cross section taken on the line 'l-'l of Fig. 6,showing the frictional joint between the two holder arms; and

Fig. 8 is a detail cross section taken on the line 8 3 of Fig. 1,showing the interlocking engagement between the inner holder arm and thepressure plate.

The embodiment of my sash holder and lock illustrated, is shown appliedto a window frame F and storm sash S of conventional type, the sash atits upper rail being hingedly connected in the usual manner to theheader member of the window frame (not shown).

My improved holder and lock is of the toggle type employing inner andouter arms ID and Il, respectively, constructed of preferably flat metalstrip material and pivoted together adjacent end portions thereof inoverlying relationship. Arm I 0 at its inner end is pivotally connectedwith a vertical sash stop X of the sash frame, as will later bedescribed in detail, and the outer arm H at its outer end, as shown, isdetachably'and pivotally connected with an attachment bracket l2 mountedon the inner side of the sash frame. The lengths of the two arms l0 vandIl, from their common pivot to the attachment pivots at the outer endsof the respective arms, are equal. The points of pivotal connection ofsaid arms with the sash frame and sash are substantially equi-distantfrom the` hinged axis of the connection of the swinging sash with thetop of the window frame. n

I provide a simple, relatively inexpensive, but eiiicient frictionalconnection between the two holder arms l0 and l l. To this end the innerarm l i) is extended for some distance beyond its pivotal connectionwith the outer arm Il,the extension l @a terminating in a serrated edge,providing'cooperating locking teeth lb. A friction applying pivot boltI3 pivotally connects the two holder arms l0 and ll extending throughsaid arms and a pair of friction washers I4 and i5 and through afriction pressure plate I disposed outwardly of the jointed end of arm Il. Pressure plate I 6 has a body of fiat construction,

as shown, conforming in general shape to the extended portion Illa ofthe arm IU and having its outer end arcuately curved and terminating ina cooperating tooth Ita which is interlocked with the teeth Ib at theextreme edge of extension of the holder arm I0. The friction washer I4is interposed between a pivoted portion of holder arm III and theconnected portion of holder arm II and, as shown, a second frictionWasher I5 is interposed between the connected portion of arm II andpressure plate I6, although this second washer can be eliminated ifdesired. The pivot bolt I3 has a short, squaredportion Ita injuxtaposition to its head which, as shown, is received in a squaredaperture in the connected portion of the arm- I0 to restrain turning ofthe pivot member relative to the arm I 0. The bolt can, of course, beinserted oppositely through the connected members, rather than in themanner shown, in which instance the squared portion I3a of the pivotbolt would be received in a squared aperturev formed in the interlockedpressure plate I. In either instancethe pivot I3 is restrained fromturning relative to the inner holderarm I0 because of the interlockingconnection of the pressure plate with the holder arm. The arm II issmoothly journalled on the pivot bolt I3. rIhe outer projecting endVofthe pivot bolt threadedly receives a clamping nut I'I which may beadjusted threadedly to apply varying irictional pressure between theconnected arms and which bearsl against pressure plate I6. Plate I6 doesnot turn relatively to the nut, so there is no tendency for the nuttobecome looscned by repeated adjustment of the sash.

Pivotally connected attachment means are provided for the end of holderarm I0 associated withthe sash frame. As shown, I provide a ilatvattachment plate I8 having countersunk apertures adjacent its ends forreception of screws I9 for securing the plate flush against the verticalsash stop X at one side of the window fra-me. The connected end of arm.I0 is pivotally secured to attachment plate I8, asshown, by a rivetcounter-sunk in the back of attachment plate I8 and, as shown, afriction washer 20 is interposed lbetween the attachment plate I8Y andconnected end of holder arm I0. At the connected extremity of arml I0, alaterallyrand out.

wardly projecting locking toothor abutment IDt isprovided forV a purposelater to be described.

Eilcient provision is made for quickly attaching or detaching the outerend oi holder arm II with one of the stiles or side members of theswinging sash. Tothis end I provide the sash'` attachment bracket I2having a flat attachment base IZa which is secured by screws or otherVmeans to the associated stileof the sash. The

' projecting at attachment lug I2b of the bracket is. disposed inposition to overlie attachment plate I3 for holder arm Il! and the endof arm I0 pivoted to said platel when the sash is in closed thejournaling aperture in bracket l2 with its extremity and locking groove2Ia projecting therebeyond. I provide a retaining dog 22 pvoted to theside of the arm II by suitable means such as a rivet 23 and having alaterally slotted outer end 22a dening a latch for engagement with thelocking groove 2Ia of the pivot stud when the dog is swung to theposition shown in Fig. 1. The outer or latch portion of retaining dog 22is offset from the balance thereof to provide for accommodation ofattachment lug |217- oi the bracket, as will be clearly apparent from aninannular locking channel or groove 2| a adjacent Y its outer end.1Theprojecting portion of pivot stud 2l obviously may be quickly passedthrough.

spection of Fig. 2. The opposite end of retaining dog 22 is providedwith an out-turned finger piece or handle 22o for facilitatingretraction or locking of the dog. The handle portion is normally bentinwardly somewhat to provide a frictional engagement with the opposedside of the holder arm Il when the dog is locked, although any suitablemeans may be employed, such as a detent for retaining the dog in lockedposition. Holder arm I I at its outer extremity is provided with alaterally and inwardly projecting locking tooth or abutment IIt which,when the sash is closed, with the two arms disposed in overlyingposition abuts against the cooperating locking tooth lot on the innerextremity of holder arm` While the pivot stud 2l is shown as attached toY Jthe holder arm I I, it will, of course,be apparent that the same maybe attached to the bracket I2 projecting laterally from the lug I2b, andthe arm II) at its Vouter end slipped over the pivot member, and theretaining dog provided for securing the pivotally connected parts.

It will further be apparent from the foregoing description that while` Iprefer to disconnect my sash holder from the swinging sash, that `theattachment connection involving the stud pivotl and retaining dog, maybe applied to the connected end of arm IIJ- and the sash frame, as wellas to the swinging sash.

In operation the swinging sash may be held securely in any adjusted openposition, the efficient frictional retaining means at the commonIIlaofthearmII).

To adjust the opening of the sash, the sashitself may be pushedoutwardly or the improved holder may be grasped by the extension ol armIt and pressureplate I6 and positioned as desired, sufficient force, ofcourse, being exerted to overcome the'friction mechanism.

. When the sash is closed, arms lf2 and I I will be disposed inoverlying position throughout their lengths, as shown in the dottedlines-in'FigrG. At such time, the axes of pivot stud EI .and the pivotIa connecting the inner arm to the window frame Yatatchment plate aresubstantially axially aligned. If the holder (that is, both holder armsI 0 and I I) is bodily swung from that dotted line position in Fig. 6through 189 degrees to the position shown in full lines in Fig. 6, itwill be seen that the abutting locking teeth Illt and I It at theextremities of the arms Iii` and II will be reversed in their relativeposition, and when so reversed, positively lock the sash. in closedposition against opening until the holder is swung back to the normalclosed position.

It will further be seen that the connection between the holder and theswinging sash may be quickly detached by merely swinging the retainingdog 22 against the friction of its handle with arm Il, and opening theretaining dog to the dotted line position shown in Fig. 1, at which timearm Il may be resiliently bent slightly outward of the attachmentbracket I2, disengaging pivot stud 2| from the bracket. The sash thenhas attached thereto only the short, projecting attachment bracket I2.The latching of the arm l I, after connection of pivot stud 2|, issimple but effective and positive, and does not in any way interferewith the free pivoting of the holder arm about the journal provided bythe attachment bracket l2.

From the foregoing description it will be seen that I have invented asimple, relatively inexpensive, but highly efcient sash holder and lockadapted to retain the sash in any adjusted open position, whilepreventing the sash from rattling, and further adapted to lock the sashin closed position by merely swinging the holder bodily to anotherpredetermined position when the sash is closed.

It will, of course, be understood that various changes may be made inthe form, details, proportions and arrangement of the parts withoutdeparting from the scope of my invention.

What is claimed is:

1. In combination with a sash frame and swinging sash mounted therein, asash holder and lock comprising, a pair of toggle arms having a commonpivotal connection, one of said arms being pivoted to said sash frameand the other thereof being pivoted to said sash, said pivotalconnections spacing the opposing surfaces of said arms apart and beingat such points with respect to said frame and sash as to be disposedsubstantially axially of each other with said arms in overlyingrelationship when said sash is closed, Whereby said arms may be bodilyswung in unison on said axially disposed connections, said arms at theirextremities adjacent said axially disposed connections havingcooperating opposed abutment lugs extending perpendicularly to theiropposed faces, and having edge abutment surfaces meeting in a linedisposed in a plane passing through the axially disposed connectionswhen said arms are in overlying position, said lugs interlocking toprevent opening of said sash when said sash is closed and said armsswung in unison through substantially degrees from their normal closedposition.

2. In combination with a sash frame and swinging sash mounted therein, asash holder and lock comprising, a pair of toggle arms having a commonpivotal connection, said pivotal connection including a frictionalelement disposed between the connected ends of said toggle arms andspacing the opposing faces of said arms apart, one of said arms beingpivoted to said sash frame and the other thereof being pivoted to saidsash, said two last mentioned pivotal connections being at such pointswith respect to said frame and sash as to be disposed substantiallyaxially of each other with said arms in overlying relationship when saidsash is closed, whereby said arms may be bodily swung in unison on saidaxially disposed connections, said arms at their extremities adjacentsaid axially disposed connections having abutment members struck up fromthe opposed faces thereof and extending perpendicular thereto and beingdisposed substantially at opposite sides of longitudinal center lines ofsaid arms respectively adapted to abut in side edge contact to preventopening of said sash when said sash is closed and when said arms areswung in unison through substantially 180 degrees from their normalclosed position.

HANS E. PETERSEN.

